European Journal of Chemistry

Synthesis, physicochemical, thermal, fluorescence and catalytic activity studies of novel Mn(II), Co(II), Ni(II) and Cu(II) complexes with tridentate (ONS) Schiff base ligand

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Manara Ahmed Ayoub
Eman Hamed Abd-Elnasser
Mona Abdel-Aziz Ahmed
Marium Girgis Rizk


Syntheses and physicochemical studies of Mn(II), Co(II), Ni(II) and Cu(II) complexes with tridentate Schiff base ligand (E)-2-((1-(thiophen-2-yl)ethylidene)amino)phenol (HL)(ATS) were characterized by elemental analysis, FT-IR, Mass, 1H NMR, UV-Vis, magnetic moment, thermal analysis (TG and DTG) techniques, molar conductance and fluorescence spectra. The IR spectra showed that complexes were coordinated in metal ions via the imine N, O and S atoms. Magnetic and UV-Vis spectra, indicated that the geometrical structure of Mn(II), Co(II) and Ni(II) complexes are an octahedral while Cu(II) is a tetrahedral. The kinetic thermodynamic parameters such as E*, DH*, DS* and DG* were determined for each thermal degradation stage of TG curves of the metal(II) complexes using Coat-Redfern method. Fluorescence studies indicated that the Schiff base ligand HL(ATS), and its metal(II) complexes can serve as potential photoactive materials as indicated from their characteristic fluorescence properties and study the effect of solvent and pH on it. The catalytic activities of metal(II) complexes were studied using H2O2 solution.

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Ayoub, M. A.; Abd-Elnasser, E. H.; Ahmed, M. A.-A.; Rizk, M. G. Synthesis, Physicochemical, Thermal, Fluorescence and Catalytic Activity Studies of Novel Mn(II), Co(II), Ni(II) and Cu(II) Complexes With Tridentate (ONS) Schiff Base Ligand. Eur. J. Chem. 2017, 8, 85-95.

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[1]. Singh, K.; Barwa, M. S.; Tyagi, P. Eur. J. Med. Chem. 2007, 42, 394-402.

[2]. Dhahagani, K.; Mathan Kumar, S.; Chakkaravarthi, G., Anitha, K.; Rajesh, J.; Ramu, A.; Rajagopal, G. Spectrochim. Acta A 2014, 117, 87-94.

[3]. Refat, M. S.; El-Sayed, M. Y.; Adam, A. M. J. Mol. Struct. 2013, 1038, 62-72.

[4]. Padmaja, M.; Pragathi, J.; Anupama, B.; Gyana, K. C. E-J. Chem. 2012, 9, 2145-2154.

[5]. Ramadan, A. M.; Ibrahim, M. M.; Shaban, S. Y. J. Mol. Struct. 2011, 1006, 348-355.

[6]. Viswanathamurthi, P.; Natarajan, K. Synth. React. Met. Org. 2006, 36, 415-418.

[7]. Yildiz, M.; Dulger, B.; Koyuncu, S. Y. J. Indian Chem. Soc. 2004, 81, 7-12.

[8]. Lakowicz, J. R. Principles of fluorescence spectroscopy, 3th edition, New York, Springer, 2006.

[9]. Sharma, A.; Schulman, A. G. Introduction to fluorescence spectroscopy, New York, John Wiley & Sons, Inc. 1999.

[10]. Basak, S.; Sen, S.; Banerjee, S.; Mitra, S.; Rosair, G.; Rodriguez, M. T. G. Polyhedron 2007, 26, 5104-5112.

[11]. Omyma, A. M. A.; Samir, M. E.; Doaa, A. A.; Doaa A. N. Spectrochim. Acta A 2015, 144, 99-106.

[12]. Ali, O. A. M. Spectrochim. Acta A 2014, 121, 188-195.

[13]. Gupta, K. C.; Abdulkadir, H. K. J. Macromol. Sci. A 2007, 45, 53-64.

[14]. Pouralimardan, O.; Chamayou, A. C.; Janiak, C.; Hosseini-Monfared, H. Inorg. Chim. Acta 2007, 360, 1599-1608.

[15]. Nakamoto, K. Infrared and Raman Spectra of Inorganic and Coordination Compounds, 5th edition, Wiley Interscience, New York, 1997.

[16]. Spinu, C.; Pleniceanu, M.; Tigae, C. Turk. J. Chem. 2008, 32, 487-493.

[17]. Lever, A. B. P. Inorganic electronic spectroscopy, 2nd edition, Elsevier, New York, 1984.

[18]. Chandra, S.; Gupta, K. Transition Met. Chem. 2002, 27, 329-332.

[19]. Cotton, F. A.; Wilkinson, G. Advanced Inorganic Chemistry, 4th edition, Wiley, New York, 1980.

[20]. Coats, A. W.; Redfern, J. P. Nature 1964, 20, 68-69.

[21]. Taakeyama, T.; Quinn, F. X. Thermal Analysis, Fundamentals and Applications to Polymer Science, John Wiley& Sons, Chichester, 1994.

[22]. Frost, A. A.; Pearson, R. G. Kinetic and Mechanisms, 2nd edition, Wiley, New York, 1961.

[23]. Majumder, A.; Rosair, G. M.; Mallick, A.; Chattopadhyay, N.; Mitra, S. Polyhedron 2006, 25, 1753-1762.

[24]. Liu, Q. X. Polyhedron 2009, 28, 917-922.

[25]. Omyma, A. M. A.; Samir, M. E.; Maha, R. A.; Abeer, S. S. S. Spectrochim. Acta A 2015, 136, 654-660.

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